noun 下载 🔗分享 血红素 The component of hemoglobin (and other hemoproteins) responsible for binding oxygen. It consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules; one molecule binds one molecule of oxygen. Examples : "The haem in hemoglobin is essential for carrying oxygen throughout the body, and a deficiency can cause fatigue. " 血红蛋白中的血红素对于在全身输送氧气至关重要,缺乏血红素会导致疲劳。 biochemistry physiology medicine biology anatomy chemistry science organism body function part 与AI对话词汇游戏阅读练习